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LIQUIDITY AND CAPITAL RESOURCES (Details) - USD ($) |  |  |  | 3 Months Ended | 9 Months Ended |
--- | --- | --- | --- | --- | --- | ---
Jul. 16, 2021 | May 26, 2021 | Apr. 26, 2021 | Sep. 30, 2021 | Sep. 30, 2020 | Sep. 30, 2021 | Sep. 30, 2020 | Dec. 31, 2020
Liquidity and Capital Resources [Abstract] |  |  |  |  |  |  |  |
Cash |  |  |  | $ 24,381,831 |  | $ 24,381,831 |  | $ 1,630,455
Accumulated deficit |  |  |  | (151,231,510) |  | (151,231,510) |  | $ (37,380,741)
IPR&D expense |  |  |  | 80,537,551 | $ 0 | 80,537,551 | $ 0 |
Loss on sales of assets |  |  |  | 0 | 0 | (9,648,173) | 0 |
Change in fair value of contingent consideration |  |  |  | 70,000 | $ 0 | (750,000) | 0 |
Net loss |  |  |  | (86,055,312) |  | (113,842,963) |  |
Net cash used in operating activities |  |  |  |  |  | (16,657,634) | (6,463,285) |
Common stock to be purchased under common stock purchase agreement |  |  |  |  |  | $ 52,025,414 | $ 0 |
Novellus, Ltd. [Member] |  |  |  |  |  |  |  |
Liquidity and Capital Resources [Abstract] |  |  |  |  |  |  |  |
IPR&D expense | $ 80,537,551 |  |  |  |  |  |  |
Cash paid for acquisition | $ 22,882,181 |  |  |  |  |  |  |
Lincoln Park [Member] | First Purchase Agreement [Member] |  |  |  |  |  |  |  |
Liquidity and Capital Resources [Abstract] |  |  |  |  |  |  |  |
Common stock to be purchased under common stock purchase agreement |  |  |  | $ 20,000,000 |  |  |  |
Common stock purchase agreement commencement period |  |  |  |  |  | 36 months |  |
Common stock issued and sold during period (in shares) |  |  |  |  |  | 1,127,736 |  |
Gross proceeds |  |  |  |  |  | $ 20,000,000 |  |
Lincoln Park [Member] | First Purchase Agreement [Member] | Maximum [Member] |  |  |  |  |  |  |  |
Liquidity and Capital Resources [Abstract] |  |  |  |  |  |  |  |
Common stock to be purchased under common stock purchase agreement |  |  | $ 20,000,000 |  |  |  |  |
Lincoln Park [Member] | Second Purchase Agreement [Member] |  |  |  |  |  |  |  |
Liquidity and Capital Resources [Abstract] |  |  |  |  |  |  |  |
Common stock purchase agreement commencement period |  |  |  |  |  | 36 months |  |
Common stock issued and sold during period (in shares) |  |  |  |  |  | 2,424,254 |  |
Gross proceeds |  |  |  |  |  | $ 34,105,514 |  |
Lincoln Park [Member] | Second Purchase Agreement [Member] | Maximum [Member] |  |  |  |  |  |  |  |
Liquidity and Capital Resources [Abstract] |  |  |  |  |  |  |  |
Common stock to be purchased under common stock purchase agreement |  | $ 40,000,000 |  |  |  |  |  |

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